 |
|
Who's Online
|
There are currently 350 people and 1 DV-member(s) online.
|
|
|
|
|
RSS
|
|
|
|
|
| |
Score Calculation
The PCMark score is calculated by using the results of the various tests in the systems test
suite. The individual
tests are combined using a geometric mean. The geometric mean provides a fair mechanism to
combine a large
number of test results as compared to assigning arbitrary weights to individual scores. Geometric
means are
used in other successful benchmarks such as those from SPEC. The geometric mean is scaled using
results
from reference systems to produce the appropriate range of scores.
The formula for the overall PCMark score is:
PCMark Score = 66 × (File Compression × File Encryption × File
Decompression × Image Processing × File Decryption × Virus Scanning ×
Grammar Check × Audio Conversion × Web Page Rendering × WMV Video
Compression × DivX Video Compression × Physics and 3D × Graphics
Memory) 1/13
CPU Score (Pro version)
The CPU score is also the geometric mean calculated from the CPU suite test results. The scaling
factor is
created in a same manner as for the PCMark score. The CPU score formula is:
CPU Score = 110 × (File Compression × File Encryption × File Decompression
× Image Processing × File Decryption × Grammar Check × Audio Conversion ×
WMV Video Compression × DivX Video Compression) 1/9
Memory Score (Pro version)
The memory score is also calculated from the memory suite test results using a geometric mean.
The scaling
factor is created in a same way as for the PCMark score. The Memory score formula is:
Memory Score = 0.9 × {Read 8M × Read 4M × ((Read 192k + Read 4k)/2) ×
Write 8M × Write 4M × ((Write 192k + Write 4k)/2) × Copy 8M × Copy 4M ×
((Copy 192k + Copy 4k)/2)) × Random Access 8M × Random Access 4M ×
((Random access 192k + Random access 4k)/2)}1/12
Note that, for cache performance, averages of L1 and L2 results were used in the score formula to
give more
emphasis to system memory performance.
Graphics Score (Pro version)
As the graphics test suite contains fewer tests we do not use a geometric mean to combine the
scores. We are
able to assign weights to the individual tests based on typical workloads. The weights are
obtained by running
the tests on reference systems and assigning factors so that approximately: Transparent Windows
test accounts
for 20%; average of the Graphics Memory tests accounts for 30%; average of the Fill Rate tests
accounts for
25%; and average of Polygon Throughput tests accounts for 25%. Note that in the overall graphics
score the 2D
and 3D test sets are weighted equally. The formula used is:
Graphics score = 0.5 × transparent windows + 0.4 × ((video memory 16 lines +
video memory 32 lines) /2) + 0.6 × ((fill rate single text. + fill rate multitext.)/2) +
50 × ((polygon throughput single light + polygon throughput multiple lights)/2)
HDD Score (Pro version)
Again, as the hard disk drive test suite contains fewer tests we do not use a geometric mean to
combine the
scores. We are able to assign weights to the individual tests based on actual workloads. The
weights are
obtained by running the tests on reference systems and assigning factors so that approximately:
XP Startup test
accounts for 25%; Application Loading test accounts for 28%; File Copying test accounts for 12%;
and the
General HDD Usage test accounts for 35%. The formula used is:
HDD Score = (XP Startup Trace × 120) + (Application Load trace × 180) + (File
Copy Trace × 28) + (General Usage × 265)
|
Added: November 25th 2003
Reviewer: LSDsmurf
Score: 10/10
Related Link: FutureMark
Page: 4/5
|
|
|
| 
|
Previous Page (3/5)
